It was a downright, crushing blow, and only the good thickness of the skull of Sergeant King saved him from annihilation.

"The Sunset Trail" by Alfred Henry Lewis

***

In poetry:

And hullo! You Bully!
That blade's not a stick
To slash right and left,
And my skull is too thick
To be cleft with such cuffs
Of a sword. Now a lick

"The Foreigner" by Amy Lowell

"For my thought flashes out as a sword, cleaving counsel as
clottage of cream;
And your incense and chanting are but as the smoke of burnt
towns and the scream;
And I quaff me the thick mead of triumph from enemies' skulls
in my dream!

"King Raedwald" by Helen Gray Cone

In news:

I don't know how many times I will have to learn this lesson before I get it through my thick skull: I cannot predict the future.